PUMP DEVICE AND CYCLONE TYPE WATER TREATMENT DEVICE
To provide a cyclone type water treatment device which sucks up a liquid from a device lower part, has a simple structure not requiring an on-off valve or a dust tank at a device lower end, and is also applicable to a well using a thin pipe, and to provide a pump device equipped with the cyclone typ...
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Format: | Patent |
Sprache: | eng ; jpn |
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